Reel



June 5, 1951 w. G. EsMoND INVENTOR.

WILLIAM G. ESMOND,

M ATTQRNEYS Patented June 5, 1951 'REEL 'William' George Esmond, '-Cumberland, Md., f as- .Lfsignorfto r .Celanese 1 Corporation :of America, Aa

.corporation Yof Delaware Application May 10, 1947, SerialNo. 747;'287

6 Claims. (01.28-7127) `This invention relates `to apparatus -employed in the manufactureof artificials'ilkfilaments, threads, yarn and the?like,`fhereinafter-referred to as yarn,4 and relates more lparticularlyto a reel adapted toadvance helices fof yarn in an axial direction. The `yarnmay-be subjected to a treatment with a `fluid medium or mediums during the movement` ofthe helices -of yarn along'the reel.

An object of this inventionis the provision of animproved advancing reel characterizedbyfits simplicity and strengthLof construction.

Another object `cffthis invention istof provide an improved advancing reel embodying a-plurality of bars which are angularlyspaced with `respect to each other, fthe angular spacing being Xed and equal and .whichfbars are divided into two cages adapted for interdigitatingfmovement.

Other objects of the present invention,rtogether with certain details'offconstructionuand combinations of parts, will appear fromither following detailed description.

lin the drawings wherein'aalpreferredembodiment of this invention'isl shown,

Fig. 1 is ancelevationarveiw of'the free end of the advancing reel'ofmy invention,

Fig. 2 is a cross-sectionalnview along line "2-.2 in'Fig. 1, and

Fig. 3 is a cross-sectional `view'along linee-"3 in Fig. 2.

`Like reference characters indicate lflike kparts throughout the several views of the drawing.

AReferring now 'to the drawingIfor' a'vdetailed descriptionof-'my invention, the reel-'comprises a plurality of Spacedannularlyarranged, longi tudinally extending bars which are `divided into sets, each havingan equal number of bars,-form ing two cages, the-bars-'of `whicharel interdigitated. `'fhe bars 4generally indicated by `referencenumeral 4 form cageJ-A and thebfarsrgenerally indicated -by reference'numeralE `form cage B. The bars 4 and I-5 .are supported by means hereinafter setA forth, carried by a single shaft 6 fixed in a flange I which may be attached to any suitable?framework.` or support (not shown).

Fixed to shaft 6 are cam membersggenerally indicated by reference numerals 8 and 9 being held thereon'bysetscrews-Ill. Cam-members 8 comprises a cam I I having a .circumferential-cam surface I2 `and an annular cam-surface I3 along the edge thereof, and afsecond -caxn I4, integral with cam II, having a circumferential 'cam fsurface I5, and an annular cam surface I6. "Cam member `9 is constructed similarly` to cam.mern ber 8 and also comprises two integral cams, cam

A'2 Il and cam I8. `Cam I'I has a circumferential `cam surface I9 andan annular cam surface 2|, while cam I8 has a circumferential cam surface 22 and an annular cam surface 23.

The bars 4 of cage A are provided withv ears -24 forming brackets inv which are journaledpins 25 having mounted thereon cam followers `26 and 21. Cam follower 26` is Aadapted to be in contact with circumferential cam surface I2 on cam II, and cam follower 21 is adapted tobe in contact with circumferential cam surface I9 on cam I'I. The ends of bars f4 are alsoprovided with brackets 28 and'ZB in which are journaled cam followers 3| and32, respectively. Cam follower y3| is adaptedto be in conta'ctwithannular cam surface I3 on cam II, and cam"follower`32` is adapted-to be in contactwith cam surfacef2 I 1 on cam II. Similarlygthe ba1s"5.of cagefB :also have two pairs .of cam *followers These barst are provided" with Abrackets '33 and 34 4in -which* are journaled cam followers 35 and 36, respectively. Cam *follower 35 `isnadapted tozbelincontactfwith the circumferential cam 'csurfacel f `camz I4, and `cam'follower v36 is adapted` to besinl contact with circumferential cam'surfacef'22 of cam 13. Bars v5` also vhave brackets 1'3'I'and 38,"infwhich are `journaled cam followers I39 Aand 4I,respec tively. Camfollower 39 is adaptedtobe in contact with thel annularI cam Y*surface* I6 '0f-cam I4, and cam 1fo1'lower4l'is adapted to be incontact with annular'camfsurface 23 cream` I8.

'To drive -the bars'4 and-5 annularly about sha-ftfl, there is provi'deda spider-42 having'arms 43; each of-which arms carry a ball bearing structure extending into pockets 45r inthe :Abars- 4 and 5. The spider 42 is rotatably-mounted on a ballbearingstructure and arroller bear-ing structuref`4'I carried by shaft-t. An internalgearis fixedf-to spider 42- bymeans of screw A bolts 49. The interalgear 48 -isrl driven. by -a piniongear 5I mounted at `the-endiof-a-shaft-52`-fpassing through flangef'l.

Springs 53, attached at one end -to loops a 54 fixed to-spider-AZ, and at thee-other end. to :loops 55V inpockets -56 inrbars Y4 and. 5, are...provided to maintain-said bars incontact` with thecircumferential cam surfaces 4of `the `Ycanrmembers :8 and.9.

The motion ofthe advancingreel ofthis .invention is as follows: As the spider`42.is.caused to rotate, .the camfollowers 26 and 2l running oni-the i. circumferential cam4 surfaces I 2 and I 9, of cams II and I'I,.respectively, cause the bars 4 of cageA .tomovein andout. The bars follow a.circular;path vclockwise.frormpoint D `to point H, then withdraw evenly to point -J, the point of maximum withdrawal, then move outwardly gradually until point D is reached where they are fully extended. At the same time, the rotation of the spider causes the cam followers 35 and 38 on the circumferential cam surfaces I and 22 of cams I4 and I8, respectively, to move the bars of cage B in and out. The bars 5 follow a perfectly circular path from point H to point D, then withdraw evenly to point F, the point of maximum withdrawal, then move outwardly gradually to point I-I where they are fully extended.

With respect to the yarn advancing motion of the bars of the reel, the bars 4 of cage A are caused to advance and retract by the annular cam surfaces I3 and 2I cooperating with cam rollers 3| and 32, respectively. The bars ll advance evenly from point C to point I and then.

are retracted to their original position. The bars 5 of cage B are caused to advance and retract by the annular cam surfaces I6 and 23 cooperating with cam followers 39 and 4I, respectively. The bars 5 advance evenly from point G to point E and then are retracted to their original position.

'Ihe structure of the advancing reel of the present invention presents many advantages. Thus, the spider and cam arrangement permits the axial movement of the bars of the cages to be parallel at all times to shaft 6; the spacing of the bars remains fixed and equal avoiding any abrasion of the yarn; the cam means for effecting interdigitating movement of the cages and the advancing and retracting movement of the bars makes for positive operation thereof and both cages advance uniformly, thus produce perfect helices of yarn.

It is to be understood that the foregoing detailed description is merely given by Way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described my invention, what I desire to secure by Letters Patent is:

1. A reel for advancing helices of yarn axially, comprising a fixed shaft, a plurality of cams fixed to said shaft, a plurality of longitudinally extending bars for carrying the yarn along the reel, a plurality of rollers on each of said bars for cooperating with said cams, a spider mounted on said shaft for rotation relative thereto for moving said bars around said shaft, a gear attached to said spider and means for rotating said gear, the construction arrangement being such that said cams effect radial and axial reciprocation of said bars as said bars are caused to move around said shaft by said spider.

2. A reel for advancing helices of yarn axially, comprising a xed shaft, a plurality of cams xed to said shaft, a plurality of longitudinally extending bars for carrying the yarn along the reel, a plurality of rollers on each of said bars for cooperating with said cams, a spider disposed between said cams and mounted on said shaft for rotation relative thereto for moving said bars around said shaft, a gear attached to said spider and means for rotating said gear, the construction arrangement being such that said cams effect radial and axial reciprocation of said bars as said bars are caused to move around said shaft by said spider.

3. A reel for advancing helices of yarn axially, comprising a xed shaft, a plurality of cams fixed to said shaft, a plurality of longitudinally extending bars for carrying the yarn along the reel, a plurality of rollers on each of said bars for comprising a xed shaft, a plurality of cams xed Y to said shaft, two cages of longitudinally extending bars wherein the bars of one of said cages are interdigitated with the bars of the other of said cages to form a cylinder of spaced, longitudinally extending bars, for carrying the yarn along the reel, a plurality of rollers on each of said bars for cooperating with said cams, a spider mounted on said shaft for rotation relative thereto for moving said bars around said shaft, a gear attached to said spider and means for rotating said gear, the construction arrangement being such that said cams effect radial and axial reciprocation of said bars as said bars are caused to move around said shaft by said spider.

5. A reel for advancing helices of yarn axially, comprising a fixed shaft, a plurality of cams fixed to said shaft, two cages of longitudinally extending bars wherein the bars of one of said cages are interdigitated with the bars of the other of said cages to form a cylinder of spaced, longitudinally extending bars, for carrying the yarn along the reel, a plurality of rollers on each of said bars for cooperating with said cams, a spider disposed between said cams and mounted on said shaft for rotation relative thereto for moving said bars around said shaft, a gear attached to said spider and means for rotating said gear, the construction arrangement being such that said cams effect radial and axial reciprocation of said bars as said bars are caused to move around said shaft by said spider.

6. A reel for advancing helices of yarn axially, comprising a fixed shaft, a plurality of cams xed to said shaft, two cages of longitudinally extending bars wherein the bars of one of said cages are interdigitated with the bars of the other of said cages to form a cylinder of spaced, longitudinally extendings bars, for carrying the yarn along the reel, a plurality of rollers on each of said bars for cooperating with said cams, a spider mounted on said shaft for rotation relative thereto for moving said bars around said shaft, spring means connected to said spider and said bars for maintaining said rollers on said bars in contact with said cams, a gear attached to said spider and means for rotating said gear, the construction arrangement being such that said cams effect radial and axial reciprocation of said bars as said bars are caused to move around said shaft by said spider. Y

WILLIAM G. ESMOND.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 2,168,555 Battin Aug. 8, 1939 2,175,218 Samerdyke Oct. 10, 1939 2,396,297 Stanley Mar. 12, 1946 2,429,534 Stone Oct. 21, 1947 2,435,430 Ewing Feb. 3, 1948 

